Wrapper-carrier suction control



' p 1929. W. R. LINDGREN 1,710,739

- WRAPPER CARRIER SUCTION CONTROL Filed A rii 20, 1927 Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE:

WALTER LINJDGREN, OF NEW YORK, N. Y., ASSIGNOR TO INTERNATIONAL CIGAR MACHINERY COMPANY, A. CORPORATION OI NEW JERSEY.

WRAPBEB-CA BRIER SUCTION CONTROL.

Application filed April 20, 1927. Serial No. 185,213.

This invention relates to an improved wrapper suction control for cigar machines, its mam ob ect being to provide improved means for controlling the delivery of the wrapper from the carrier to a bunch in the wrapping mechanism.

The function of a wrapper carrier is to receive a cut wrapper from a cutting bed and to transfer the same to a bunch wrapping device, and to hold it during the wrapping operation. For this purpose, the face plate of the wrapper carrier head is provided with holes communicating with a suction chamber within the carrier head. -As

the wrapper is peeled off the plate as it is wound about a bunch, more and more suction holes are exposed so thatthe suction effect on the wrapperbecomes less and less, and before the cigar is completely wrapped the suction force becomes so reduced that the remaining end of the wrapper is'no longer held fast to the carrier but slips over the'surface of the same as the end of the wrapping operation approaches, or even sometimes drops off entirely, with the resultthat the last portion of the cigar is not as tightly and evenly wrapped as the first portion. a

To overcome this difficulty, the carrier, in the new device, by a suitable partition, is made into two compartments, and a camcontrolled automatic valvev is placed in the partition in such a manner that at the proper moment the suction is cut oil from one compartment and all of it is confined to the other compartment which holds the still unapplied end of the wrapper. As soon as this suction transfer is made near the end of the wrapping period, during the wrapper delivering movement of the carrier, the valve operating mechanism is so arranged that the'valve cam op'erates'the suction valve during the wrapper delivering movement of the carrier only, the carrier passing the camv 2-2 of Fig. 1, showing the valve actuating mechanism; Fig. 3 is a plan view of the suction head taken on the line 3-3 of Fig. 1, showing the partition wall and valve; Fig. 4 is a lateral cross-section of the suction head taken on the line 4-4 of Fig. 2; and F 5 1s a longitudinal cross-section of the suction head taken on the line 55 in Fig. 3.

In carrying the invention into effect, there is provided a cigar wrapper carrier having a wrapper delivering movement, and a suc tion head provided with a partition-dividing 1ts interior into two compartments, a suction controlling valve in said partiton, valve operating mechanism projecting to the extenor of said carrier, and means'in the path of and actuating said mechanism to close said valve during the latter part of the wrapper delivering movement. These parts may be varied in construction within the scope of the claims, for the specific device selected to illustrate the invention is but one of numerous possible concrete embodiments of the same. The invention therefore is not to be restricted to theprecise details of the struction shown and described.

Referring to Figs. 1 and 2, the wrapper carrier neck 6 is rotatably supported in a swlnging arm 7, the latter being pivoted to anarm 8 mounted on a vertical hollow shaft 9 supported by a frame 10 which also carries a stationary cam 11. The latter, through a roller 12 on an arm 13 attached to the arm 7, controls the movement of the arms 7 and 8, or the motion of the wrapper carrier around the shaft 9. The cam 11, through a roller 14 on a Y-shaped arm 15 pivoted in a bracket 16 carried by the arm 8, and through a rod 17 and an arm 18 attached to the earrier neck 6, also controls the rotary movement of the wrapper carrier 6 in the arm 7. The cam 11 is proteoted by a cover plate 19 fastened to it by means of spacers 20. To the neck 6. is attached the suction head 21 having the usual perforated plate 22, said head and plate communicating, through the neck 6, the arms 7 and 8 and the shaft 9, with a suction producing device, not shown but well known, and by the hollow flexible connection 23 with the compressed air pipe 24. The structure so far described is well known in the art.

Figs. 3 to 5 illustrate the improved arrangement of the suction head 21 which is provided with a partition 25 havingfla horivertical wall or section of the partition 25 when theplate is in place.

Into the horizontal section of the partition 25 is fitted a valve of the butterfly type, hav-- ing vanes 27 secured to the ends of a pin 28 carried by a housing 2-9 attached to the partition 25. To the center ofthe pin 28,

within the housing 29, is secured a crank 30 to which is pivoted a valve rod 31.. The latter passes through the neck 6 to the exterior of the carrier, and on its exposed upper end it carries a cam roller 32 supported by a tripper 33 pivoted to a fork 34 which is attached to the end of the rod 31 and has a pivoted spring so arranged that it presses the tripper against the side of the fork 34: and thus normally maintains the tripper 33 in an upright position.

During travel of the wrapper carrier from the cutting bed to the wrapping .device and.

back, the roller 32 twice engages a stationary cam 36 carridby a bracket 37 attached to the stationary cam 11. During its rearward movement, when the suction head is carrying the fresh wrapper just taken 'from the cutting bed and thus requires suction over the entire surface of the plate 22, the roller 32 hits the tip of the cam 36, thereby causing the spring 35 to yield and allow the tripper 33 to dip under the cam 36, thus permitting the wrapper carrier to pass without afl'ecting the valve 27 which is normally in open position. During its forward or wrapper delivering movement, however, when the suction head is over the wrapping deviceand the major portion of the wrapper has-been wound about the bunch, so that suction is needed at one end of the wrapper only the roller 32 engages the inclined portion oli the cam 36, and, by pressing the tripper 33 against the fork 34, helps the spring 35 to keep the. tripper upright so that the rod 31, which is normally held in its uppermost position by a spring 38 lying between the shoulder of a suitable recess in the neck 6 and a sleeve nut 39 on "the rod 31, is then depressed and the valve 27 is closed. A pin 40 is provided to stop the valve in its open position when the spring 38, after the roller 32 has passedthe top of the cam 36, raises the valve rod 31.

What is claimed is:

1. The combination with a cigar wrapper carrier having a wrapper delivering movement and a suction head provided with a partition dividing its interior into two compartments, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projectin axially to the exterior of said carrier, an means in the path of and actuating the projecting end of said mechanism to close said valve during the latter part of the wrapper delivering movement.

2. The combination with a cigar wrapper carrier having a Wrapper delivering movement and a suction head provided with 'a partition dividing its interior into two compartinents, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projecting axially to the exterior of said carrier, and means in the path of and actuating the projecting end of said mechanism to close said valve during the latter part of the wrapper delivering movement, said partition having a horizontal section and a vertical section,

and said valve being mounted in said horizontal section.

3. The combinaiton with a cigar wrapper carrier having a wrapper delivering movement anda suction head provided with a partition dividing its interior into two compartments, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projecting axially to the exterior of said carrier, and means in the path of and actuating the projecting end of said mechanism to close said valve during the latter part of the wrapper delivering movement, said valve being of the butterfly type and having an arm whereby said mechanism swings the valve in said partition.

4. The combination with a cigar wrapper carrier having a wrapper delivering move ment and a suction head provided with a partition dividing its interior into two compartments, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projecting axially to the exterior of said carrier,and

means in the path of and actuating the projecting end or said mechanism to close said valve during the latter part of the wrapper delivering movement, said mechanism including a rod and a spring acting on said rod to hold the valve open except when actuated by said means.

5. The combination with a cigar wrapper carrier having a wrapper delivering movement and a suction head provided with a partition dividing its interior into two compartments, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projecting axially to the exterior of said carrier, an means in the path of and actuating the projecting end of said mechanism to close said valve during the latter part of the wrapper delivering movement said mechanism including a one-way trip device outside said carrier and a rod connecting said device with said valve.

6. The combination with a cigar wrapper carrier having a wrapper delivering movement and a suction head provided with a partition dividing its interior into two compartments, of a suction-controlling valve in said partition adjacent the centre of the carrier, valve-operating mechanism projecting axially to the exterior of said carrier, and means in the path of and actuating the projecting end of said mechanism to close said valve during the latter part of the Wrapper delivering movement, said means including a stationary cam actuating said mechanism during the latter part of the wrapper delivering movement of said carrier and bypasing said mechanism during the returnmovement of said carrier.

In testimony whereof, I have signed my name to thisspecification.

WALTER R. LINDGREN. 

